Finding the Fourth Proportional to 71,850.26, 107,775.41 and 21,930.63
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Solution
The fourth proportional to 71,850.26, 107,775.41 and 21,930.63 is: 32,895.95
Step by Step Solution
- Step 1: Write the proportion equation
71,850.26 : 107,775.41 = 21,930.63 : x - Step 2: Convert to fraction form
71,850.26/107,775.41 = 21,930.63/x - Step 3: Cross multiply
71,850.26x = 107,775.41 × 21,930.63 - Step 4: Simplify right side
71,850.26x = 2,363,582,639.81 - Step 5: Solve for x
x = 2,363,582,639.81/71,850.26 - Step 6: Final answer
x = 32,895.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.